Review on Enhance Your Riding Experience with Cardo Motorcycle 45mm Audio Set - Black (Single Pack) by Richie Jacobson

I installed them in my Sena 20S helmet system. I had to take them out. Here's why: 1) There's a bit more bass in the sound quality than the factory speakers, but it distorts quite a bit at max volume. 2) Here's the real problem: I wear earplugs and then crank the volume all the way up. If you do this with these replacement speakers, there will be feedback through the mic, while the factory speakers don't. Why? These cardos plug into the Sena's headphone jack. When using the headphone jack, the Sena's feedback cancellation feature is disabled. This creates all kinds of squeaks and echoes for you and the other riders on your intercom. These replacement speakers would be very nice if you could plug them into the SENA's speaker port, then the feedback would be suppressed. But you can't. There is no joy. I do not recommend.